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SELECT max(SYS_CONNECT_BY_PATH(COLUMN_NAME, ','))
from (SELECT A.COLUMN_NAME, ROWNUM AS ROWNO
from USER_TAB_COLUMNS A
WHERE TABLE_NAME = 'A_USER'
order by a.COLUMN_ID)
start with ROWNO = 1
connect by ROWNO = rownum;
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set feedback off
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1.GSD global services daemon
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The Global Services Daemon (GSD) runs on each node with one GSD process per node. The GSD coordinates with the cluster manager to receive requests from clients such as the DBCA, EM, and the SRVCTL utility to execute administrative ......